RFR: 8266642: improve ResolvedMethodTable hash function [v6]

[Denghui Dong]

On Wed, 12 May 2021 17:34:25 GMT, Denghui Dong <ddong at openjdk.org> wrote:

>> JDK-8249719 has fixed the bad hash function problem, however, the performance problem still exists when there are a large number of classes with the same name.
>> Adding the address of the corresponding ClassLoaderData as a factor of hash can solve the problem.
>
> Denghui Dong has updated the pull request incrementally with one additional commit since the last revision:
> 
>   use ClassLoaderData* as factor

test with this improvement:

Passed: runtime/MemberName/ResolvedMethodTableHash.java
  build: 0.587 seconds
  compile: 0.585 seconds
  main: 3.495 seconds
Test results: passed: 1


test without this improvement:

Passed: runtime/MemberName/ResolvedMethodTableHash.java
  build: 0.581 seconds
  compile: 0.579 seconds
  main: 10.896 seconds
Test results: passed: 1

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PR: https://git.openjdk.java.net/jdk/pull/3901